[osal]: fix allocator error on x86_64

x86_64 is for simulation debug. It is just for working flow test.

Change-Id: I2d1cb50e52a104e58f6eaf3b27fd9dcf41b9ada6
Signed-off-by: Herman Chen <herman.chen@rock-chips.com>

build/linux/x86_64/make-Makefiles.bash

@@ -1,3 +1,7 @@
 #!/bin/bash
 # Run this from within a bash shell
-cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=debug -DCMAKE_RKPLATFORM_ENABLE=ON ../../../  && ccmake  ../../../
+# x86_64 is for simulation do not enable RK platform
+cmake -G "Unix Makefiles" \
+    -DCMAKE_BUILD_TYPE=debug \
+    -DCMAKE_RKPLATFORM_ENABLE=OFF \
+    ../../../  && ccmake  ../../../

osal/linux/os_allocator.c

@@ -138,7 +138,11 @@ MPP_RET os_allocator_get(os_allocator *api, MppBufferType type)
         *api = allocator_normal;
     } break;
     case MPP_BUFFER_TYPE_ION : {
+#ifdef RKPLATFORM
         *api = allocator_ion;
+#else
+        *api = allocator_normal;
+#endif
     } break;
     case MPP_BUFFER_TYPE_V4L2 : {
         mpp_err("os_allocator_get Linux MPP_BUFFER_TYPE_V4L2 do not implement yet\n");